These troubleshooting techniques are covered in more detail in the video if the text instructions are unclear.
Find any Apple related certificates that are highlighted in blue.Click on the “System Roots” section in the left navigation area.Open the “Keychain Access” application on your Mac computer (Utilities Folder).Solution for the “Could not connect to the server.” Apple App Store error message: If the above troubleshooting steps do not work, I suggest moving on to the solution that work for me. Make sure the App Store is set to the proper country.Basic Apple App Store Troubleshooting Techniques: I first attempted the normal troubleshooting steps for this kind of issue, which I recommend you try as well if you have not yet. This issue first occurred for me when performing a clean wipe and install of High Sierra on a late 2013 Macbook Pro. If you are receiving the above error message when trying to update or install an application on a computer running macOS, the above video should show you the solution to get your App Store working properly again. MacOS App Store error messages: “Could not connect to server.” “We could not complete your request.” “There was an error in the App Store.
